{"id":57351,"date":"2023-04-25T14:33:06","date_gmt":"2023-04-25T19:33:06","guid":{"rendered":"https:\/\/www.bjultrasonic.com\/what-is-ultrasonic-energy\/"},"modified":"2025-01-27T06:17:48","modified_gmt":"2025-01-27T11:17:48","slug":"what-is-ultrasonic-energy","status":"publish","type":"post","link":"https:\/\/www.bjultrasonic.com\/cs\/what-is-ultrasonic-energy\/","title":{"rendered":"Ultrazvukov\u00e1 energie: Vlastnosti, vyu\u017eit\u00ed a vliv"},"content":{"rendered":"<p>Ultrazvukov\u00e1 energie je forma mechanick\u00e9 energie, kter\u00e1 se \u0161\u00ed\u0159\u00ed ve form\u011b vln s frekvenc\u00ed vy\u0161\u0161\u00ed ne\u017e 20 kHz, tedy nad hranic\u00ed sly\u0161itelnosti lidsk\u00e9ho ucha.  Na rozd\u00edl od elektromagnetick\u00e9ho z\u00e1\u0159en\u00ed, jako je sv\u011btlo nebo rentgenov\u00e9 z\u00e1\u0159en\u00ed, se ultrazvuk \u0161\u00ed\u0159\u00ed pouze v hmotn\u00e9m prost\u0159ed\u00ed, jako je vzduch, voda nebo pevn\u00e9 l\u00e1tky. Jeho vlastnosti a chov\u00e1n\u00ed se m\u011bn\u00ed v z\u00e1vislosti na charakteristik\u00e1ch prost\u0159ed\u00ed, kter\u00fdm proch\u00e1z\u00ed.  Vyu\u017eit\u00ed ultrazvukov\u00e9 energie je velmi \u0161irok\u00e9 a zahrnuje medic\u00ednu, pr\u016fmysl, i ka\u017edodenn\u00ed \u017eivot.<\/p>\n<p>Generov\u00e1n\u00ed ultrazvukov\u00e9 energie<\/p>\n<p>Ultrazvukov\u00e9 vlny se generuj\u00ed pomoc\u00ed piezoelektrick\u00e9ho jevu, magnetostrikce nebo jin\u00fdch fyzik\u00e1ln\u00edch princip\u016f.  Piezoelektrick\u00e9 materi\u00e1ly, jako je k\u0159emen nebo keramika, m\u011bn\u00ed svou mechanickou velikost v z\u00e1vislosti na aplikovan\u00e9m elektrick\u00e9m poli.  Kdy\u017e se na tyto materi\u00e1ly aplikuje st\u0159\u00eddav\u00e9 nap\u011bt\u00ed s vysokou frekvenc\u00ed, doch\u00e1z\u00ed k vibrac\u00edm, kter\u00e9 generuj\u00ed ultrazvukov\u00e9 vlny.  Intenzita a frekvence ultrazvuku z\u00e1vis\u00ed na nap\u011bt\u00ed a vlastnostech pou\u017eit\u00e9ho materi\u00e1lu.  Magnetostrik\u010dn\u00ed materi\u00e1ly, jako je nikl, m\u011bn\u00ed sv\u00e9 rozm\u011bry v z\u00e1vislosti na aplikovan\u00e9m magnetick\u00e9m poli. Podobn\u011b jako u piezoelektrick\u00fdch materi\u00e1l\u016f, i zde se generuj\u00ed ultrazvukov\u00e9 vlny.<\/p>\n<p>\u0160\u00ed\u0159en\u00ed ultrazvukov\u00fdch vln<\/p>\n<p>\u0160\u00ed\u0159en\u00ed ultrazvukov\u00fdch vln je ovlivn\u011bno n\u011bkolika faktory, v\u010detn\u011b hustoty, elasticity a viskozity prost\u0159ed\u00ed.  Rychlost \u0161\u00ed\u0159en\u00ed ultrazvuku je v pevn\u00fdch l\u00e1tk\u00e1ch nejvy\u0161\u0161\u00ed, ni\u017e\u0161\u00ed v kapalin\u00e1ch a nejni\u017e\u0161\u00ed ve vzduchu.  Ultrazvukov\u00e9 vlny se mohou odr\u00e1\u017eet, l\u00e1mat a pohlcovat v z\u00e1vislosti na vlastnostech prost\u0159ed\u00ed.  Tento jev se vyu\u017e\u00edv\u00e1 v r\u016fzn\u00fdch aplikac\u00edch, nap\u0159\u00edklad v ultrazvukov\u00e9 diagnostice.<\/p>\n<table class=\"table table-striped table-bordered\">\n<thead>\n<tr>\n<th>Prost\u0159ed\u00ed<\/th>\n<th>Rychlost \u0161\u00ed\u0159en\u00ed (m\/s)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Ocel<\/td>\n<td>5900<\/td>\n<\/tr>\n<tr>\n<td>Voda<\/td>\n<td>1500<\/td>\n<\/tr>\n<tr>\n<td>Vzduch<\/td>\n<td>340<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Aplikace ultrazvukov\u00e9 energie<\/p>\n<p>Ultrazvukov\u00e1 energie nach\u00e1z\u00ed \u0161irok\u00e9 uplatn\u011bn\u00ed v mnoha oborech. V medic\u00edn\u011b se pou\u017e\u00edv\u00e1 k diagnostice (ultrazvukov\u00e9 vy\u0161et\u0159en\u00ed) a terapii (ultrazvukov\u00e1 l\u00e9\u010dba). V pr\u016fmyslu se vyu\u017e\u00edv\u00e1 k \u010di\u0161t\u011bn\u00ed, sva\u0159ov\u00e1n\u00ed, m\u011b\u0159en\u00ed a dal\u0161\u00edm proces\u016fm.  V ka\u017edodenn\u00edm \u017eivot\u011b se setk\u00e1v\u00e1me s ultrazvukem v d\u00e1lkov\u00fdch ovlada\u010d\u00edch, \u010distic\u00edch za\u0159\u00edzen\u00edch a senzorech.<\/p>\n<p>Vlastnosti ultrazvukov\u00fdch vln<\/p>\n<p>Ultrazvukov\u00e9 vlny se vyzna\u010duj\u00ed vysokou frekvenc\u00ed, kr\u00e1tkou vlnovou d\u00e9lkou a vysokou energi\u00ed.  D\u00edky kr\u00e1tk\u00fdm vlnov\u00fdm d\u00e9lk\u00e1m se ultrazvukov\u00e9 vlny chovaj\u00ed sp\u00ed\u0161e jako paprsky ne\u017e vlny, co\u017e umo\u017e\u0148uje jejich p\u0159esn\u00e9 zam\u011b\u0159en\u00ed.  Vysok\u00e1 energie ultrazvuku umo\u017e\u0148uje jeho vyu\u017eit\u00ed k rozru\u0161ov\u00e1n\u00ed, \u010di\u0161t\u011bn\u00ed a jin\u00fdm proces\u016fm.<\/p>\n<p>Bezpe\u010dnostn\u00ed aspekty<\/p>\n<p>A\u010dkoliv je ultrazvuk v mnoha aplikac\u00edch bezpe\u010dn\u00fd, je nutn\u00e9 dodr\u017eovat bezpe\u010dnostn\u00ed opat\u0159en\u00ed.  Intenzivn\u00ed ultrazvuk m\u016f\u017ee zp\u016fsobit po\u0161kozen\u00ed tk\u00e1n\u00ed a org\u00e1n\u016f.  P\u0159i pr\u00e1ci s ultrazvukov\u00fdmi za\u0159\u00edzen\u00edmi je nutn\u00e9 pou\u017e\u00edvat ochrann\u00e9 pom\u016fcky a db\u00e1t na dodr\u017eov\u00e1n\u00ed bezpe\u010dnostn\u00edch p\u0159edpis\u016f.<\/p>\n<p>Ultrazvukov\u00e1 energie je v\u0161estrann\u00fd n\u00e1stroj s \u0161irokou \u0161k\u00e1lou aplikac\u00ed.  Jeho vlastnosti a chov\u00e1n\u00ed se neust\u00e1le zkoumaj\u00ed a rozv\u00edjej\u00ed, co\u017e vede k nov\u00fdm a inovativn\u00edm aplikac\u00edm v mnoha oborech.  Jeho efektivn\u00ed a p\u0159esn\u00e9 pou\u017eit\u00ed z\u00e1vis\u00ed na pochopen\u00ed jeho fyzik\u00e1ln\u00edch vlastnost\u00ed a interakce s okoln\u00edm prost\u0159ed\u00edm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ultrazvukov\u00e1 energie je forma mechanick\u00e9 energie, kter\u00e1 se \u0161\u00ed\u0159\u00ed ve form\u011b vln s frekvenc\u00ed vy\u0161\u0161\u00ed ne\u017e 20 kHz, tedy nad hranic\u00ed sly\u0161itelnosti lidsk\u00e9ho ucha. Na rozd\u00edl od elektromagnetick\u00e9ho z\u00e1\u0159en\u00ed, jako je sv\u011btlo nebo rentgenov\u00e9 z\u00e1\u0159en\u00ed, se ultrazvuk \u0161\u00ed\u0159\u00ed pouze v hmotn\u00e9m prost\u0159ed\u00ed, jako je vzduch, voda nebo pevn\u00e9 l\u00e1tky. Jeho vlastnosti a chov\u00e1n\u00ed se m\u011bn\u00ed<\/p>\n","protected":false},"author":1,"featured_media":26486,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6415],"tags":[],"class_list":["post-57351","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","prodpage-classic"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57351","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/comments?post=57351"}],"version-history":[{"count":0,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/posts\/57351\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media\/26486"}],"wp:attachment":[{"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/media?parent=57351"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/categories?post=57351"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bjultrasonic.com\/cs\/wp-json\/wp\/v2\/tags?post=57351"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}